<template>
  <div class="app-container">
    <div class="filter-container">
      <el-input v-model="listQuery.title" placeholder="标题" style="width: 200px;" class="filter-item" @keyup.enter.native="handleFilter" />
      <el-input v-model="listQuery.author" placeholder="作者" style="width: 160px;" class="filter-item" @keyup.enter.native="handleFilter" />
      <el-date-picker v-model="listQuery.startDateStr" value-format="yyyy-MM-dd" type="date" style="width: 140px;" placeholder="开始日期" class="filter-item"/>
      <el-date-picker v-model="listQuery.endDateStr" value-format="yyyy-MM-dd" type="date" style="width: 140px;" placeholder="结束日期" class="filter-item"/>
      <el-select v-model="listQuery.status" placeholder="状态" clearable style="width: 90px" class="filter-item">
        <el-option v-for="(value, key) in statusMap" :key="key" :label="value" :value="key" />
      </el-select>
      <!--      <el-select v-model="listQuery.type" placeholder="Type" clearable class="filter-item" style="width: 130px">-->
      <!--        <el-option v-for="item in calendarTypeOptions" :key="item.key" :label="item.display_name+'('+item.key+')'" :value="item.key" />-->
      <!--      </el-select>-->
      <!--      <el-select v-model="listQuery.sort" style="width: 140px" class="filter-item" @change="handleFilter">-->
      <!--        <el-option v-for="item in sortOptions" :key="item.key" :label="item.label" :value="item.key" />-->
      <!--      </el-select>-->

      <el-button v-waves class="filter-item" type="primary" icon="el-icon-search" @click="handleFilter">
        搜索
      </el-button>
      <el-button class="filter-item" style="margin-left: 10px;" type="primary" icon="el-icon-edit" @click="handleCreate">
        新增
      </el-button>
      <el-button v-waves :loading="downloadLoading" class="filter-item" type="primary" icon="el-icon-download" @click="handleDownload">
        导出
      </el-button>
      <!--      <el-checkbox v-model="showReviewer" class="filter-item" style="margin-left:15px;" @change="tableKey=tableKey+1">-->
      <!--        reviewer-->
      <!--      </el-checkbox>-->
    </div>

    <el-table
      :key="tableKey"
      v-loading="listLoading"
      :data="list"
      border
      fit
      highlight-current-row
      style="width: 100%;"
    >
      <el-table-column label="ID" prop="id" align="center" width="80">
        <template slot-scope="scope">
          <span>{{ scope.row.id }}</span>
        </template>
      </el-table-column>
      <el-table-column label="创建日期" width="150px" align="center">
        <template slot-scope="scope">
          <span>{{ scope.row.createTime | parseTime('{y}-{m}-{d} {h}:{i}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="标题" min-width="150px">
        <template slot-scope="{row}">
          <span>{{ row.title }}</span>
          <!--          <el-tag>{{ row.type | typeFilter }}</el-tag>-->
        </template>
      </el-table-column>
      <el-table-column label="作者" width="110px" align="center">
        <template slot-scope="scope">
          <span>{{ scope.row.author }}</span>
        </template>
      </el-table-column>
      <el-table-column label="浏览量" width="110px" align="center">
        <template slot-scope="scope">
          <span>{{ scope.row.viewCount }}</span>
        </template>
      </el-table-column>
      <!--      <el-table-column v-if="showReviewer" label="Reviewer" width="110px" align="center">-->
      <!--        <template slot-scope="scope">-->
      <!--          <span style="color:red;">{{ scope.row.reviewer }}</span>-->
      <!--        </template>-->
      <!--      </el-table-column>-->
      <!--      <el-table-column label="Imp" width="80px">-->
      <!--        <template slot-scope="scope">-->
      <!--          <svg-icon v-for="n in +scope.row.importance" :key="n" icon-class="star" class="meta-item__icon" />-->
      <!--        </template>-->
      <!--      </el-table-column>-->
      <!--      <el-table-column label="Readings" align="center" width="95">-->
      <!--        <template slot-scope="{row}">-->
      <!--          <span v-if="row.pageviews" class="link-type" @click="handleFetchPv(row.pageviews)">{{ row.pageviews }}</span>-->
      <!--          <span v-else>0</span>-->
      <!--        </template>-->
      <!--      </el-table-column>-->
      <el-table-column label="状态" class-name="status-col" width="100">
        <template slot-scope="{row}">
          <el-tag :type="row.status | statusStyle">
            {{ row.status | statusFilter }}
          </el-tag>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" width="230" class-name="small-padding fixed-width">
        <template slot-scope="{row}">
          <el-button type="primary" size="mini" @click="handleUpdate(row)">
            编辑
          </el-button>
          <!--          <el-button v-if="row.status!='published'" size="mini" type="success" @click="handleModifyStatus(row,'published')">-->
          <!--            Publish-->
          <!--          </el-button>-->
          <!--          <el-button v-if="row.status!='draft'" size="mini" @click="handleModifyStatus(row,'draft')">-->
          <!--            Draft-->
          <!--          </el-button>-->
          <!--          <el-button v-if="row.status!='deleted'" size="mini" type="danger" @click="handleModifyStatus(row,'deleted')">-->
          <!--            Delete-->
          <!--          </el-button>-->
        </template>
      </el-table-column>
    </el-table>

    <pagination v-show="total>0" :total="total" :page.sync="listQuery.curPageNum" :limit.sync="listQuery.pageSize" @pagination="getList" />

    <el-dialog :title="textMap[dialogStatus]" :visible.sync="dialogFormVisible">
      <el-form ref="dataForm" :rules="rules" :model="temp" label-position="left" label-width="70px" style="width: 400px; margin-left:50px;">
        <!--        <el-form-item label="Type" prop="type">-->
        <!--          <el-select v-model="temp.type" class="filter-item" placeholder="Please select">-->
        <!--            <el-option v-for="item in calendarTypeOptions" :key="item.key" :label="item.display_name" :value="item.key" />-->
        <!--          </el-select>-->
        <!--        </el-form-item>-->
        <!--        <el-form-item label="Date" prop="timestamp">-->
        <!--          <el-date-picker v-model="temp.timestamp" type="datetime" placeholder="Please pick a date" />-->
        <!--        </el-form-item>-->
        <el-form-item label="标题" prop="title">
          <el-input v-model="temp.title" />
        </el-form-item>
        <el-form-item label="作者" prop="author">
          <el-input v-model="temp.author" />
        </el-form-item>
        <el-form-item label="状态">
          <el-select v-model="temp.status" class="filter-item" placeholder="请选择">
            <el-option v-for="(value, key) in statusMap" :key="key" :label="value" :value="key" />
          </el-select>
        </el-form-item>
        <!--        <el-form-item label="Imp">-->
        <!--          <el-rate v-model="temp.importance" :colors="['#99A9BF', '#F7BA2A', '#FF9900']" :max="3" style="margin-top:8px;" />-->
        <!--        </el-form-item>-->
        <el-form-item label="内容">
          <el-input v-model="temp.content" :autosize="{ minRows: 2, maxRows: 4}" type="textarea" placeholder="文章内容" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">
          取消
        </el-button>
        <el-button type="primary" @click="dialogStatus==='create'?createData():updateData()">
          确定
        </el-button>
      </div>
    </el-dialog>

    <!--    <el-dialog :visible.sync="dialogPvVisible" title="Reading statistics">-->
    <!--      <el-table :data="pvData" border fit highlight-current-row style="width: 100%">-->
    <!--        <el-table-column prop="key" label="Channel" />-->
    <!--        <el-table-column prop="pv" label="Pv" />-->
    <!--      </el-table>-->
    <!--      <span slot="footer" class="dialog-footer">-->
    <!--        <el-button type="primary" @click="dialogPvVisible = false">Confirm</el-button>-->
    <!--      </span>-->
    <!--    </el-dialog>-->
  </div>
</template>

<script>
import { fetchList, fetchPv, createArticle, updateArticle } from '@/api/article'
import waves from '@/directive/waves' // waves directive
import { parseTime } from '@/utils'
import Pagination from '@/components/Pagination' // secondary package based on el-pagination

// const calendarTypeOptions = [
//   { key: 'CN', display_name: 'China' },
//   { key: 'US', display_name: 'USA' },
//   { key: 'JP', display_name: 'Japan' },
//   { key: 'EU', display_name: 'Eurozone' }
// ]

// arr to obj, such as { CN : "China", US : "USA" }
// const calendarTypeKeyValue = calendarTypeOptions.reduce((acc, cur) => {
//   acc[cur.key] = cur.display_name
//   return acc
// }, {})

export default {
  name: 'ComplexTable',
  components: { Pagination },
  directives: { waves },
  filters: {
    statusStyle(status) {
      const statusStyleMap = {
        '1': 'success',
        '2': 'info'
        // 3: 'danger'
      }
      return statusStyleMap[status]
    },
    statusFilter(status) {
      const statusMap = {
        '1': '上线中',
        '2': '已下线'
      }
      return statusMap[status]
    }
    // typeFilter(type) {
    //   return calendarTypeKeyValue[type]
    // }
  },
  data() {
    return {
      tableKey: 0,
      list: null,
      total: 0,
      listLoading: true,
      listQuery: {
        curPageNum: 1,
        pageSize: 10,
        status: undefined,
        // importance: undefined,
        title: undefined,
        author: undefined,
        startDateStr: undefined,
        endDateStr: undefined
        // type: undefined,
        // sort: '+id'
      },
      // importanceOptions: [1, 2, 3],
      // calendarTypeOptions,
      // sortOptions: [{ label: 'ID Ascending', key: '+id' }, { label: 'ID Descending', key: '-id' }],
      // statusOptions: ['上线中', '已下线'],
      statusMap: { '1': '上线中', '2': '已下线' },
      // showReviewer: false,
      temp: {
        id: undefined,
        content: '',
        createDate: '',
        updateDate: '',
        title: '',
        status: ''
      },
      dialogFormVisible: false,
      dialogStatus: '',
      textMap: {
        update: '编辑',
        create: '新增'
      },
      dialogPvVisible: false,
      pvData: [],
      rules: {
        type: [{ required: true, message: 'type is required', trigger: 'change' }],
        timestamp: [{ type: 'date', required: true, message: 'timestamp is required', trigger: 'change' }],
        title: [{ required: true, message: 'title is required', trigger: 'blur' }]
      },
      downloadLoading: false
    }
  },
  created() {
    this.getList()
  },
  methods: {
    getList() {
      this.listLoading = true
      fetchList(this.listQuery).then(response => {
        this.list = response.data.list
        this.total = response.data.total
        this.listLoading = false
      })
    },
    handleFilter() {
      this.listQuery.page = 1
      this.getList()
    },
    handleModifyStatus(row, status) {
      this.$message({
        message: '操作Success',
        type: 'success'
      })
      row.status = status
    },
    // sortChange(data) {
    //   const { prop, order } = data
    //   if (prop === 'id') {
    //     this.sortByID(order)
    //   }
    // },
    // sortByID(order) {
    //   if (order === 'ascending') {
    //     this.listQuery.sort = '+id'
    //   } else {
    //     this.listQuery.sort = '-id'
    //   }
    //   this.handleFilter()
    // },
    resetTemp() {
      this.temp = {
        id: undefined,
        content: '',
        title: '',
        status: '',
        updateDate: '',
        createDate: ''
      }
    },
    handleCreate() {
      this.resetTemp()
      this.dialogStatus = 'create'
      this.dialogFormVisible = true
      this.$nextTick(() => {
        this.$refs['dataForm'].clearValidate()
      })
    },
    createData() {
      this.$refs['dataForm'].validate((valid) => {
        if (valid) {
          createArticle(this.temp).then(() => {
            this.getList()
            this.dialogFormVisible = false
            this.$notify({
              title: 'Success',
              message: 'Created Successfully',
              type: 'success',
              duration: 2000
            })
          })
        }
      })
    },
    handleUpdate(row) {
      this.temp = Object.assign({}, row) // copy obj
      // 如果不转为string，下拉表单会出错
      this.temp.status = String(row.status)
      this.dialogStatus = 'update'
      this.dialogFormVisible = true
      this.$nextTick(() => {
        this.$refs['dataForm'].clearValidate()
      })
    },
    updateData() {
      this.$refs['dataForm'].validate((valid) => {
        if (valid) {
          const tempData = Object.assign({}, this.temp)
          // tempData.timestamp = +new Date(tempData.timestamp) // change Thu Nov 30 2017 16:41:05 GMT+0800 (CST) to 1512031311464
          updateArticle(tempData).then(() => {
            for (const v of this.list) {
              if (v.id === this.temp.id) {
                const index = this.list.indexOf(v)
                this.list.splice(index, 1, this.temp)
                break
              }
            }
            this.dialogFormVisible = false
            this.$notify({
              title: 'Success',
              message: 'Update Successfully',
              type: 'success',
              duration: 2000
            })
          })
        }
      })
    },
    handleDelete(row) {
      this.$notify({
        title: 'Success',
        message: 'Delete Successfully',
        type: 'success',
        duration: 2000
      })
      const index = this.list.indexOf(row)
      this.list.splice(index, 1)
    },
    handleDownload() {
      this.downloadLoading = true
      import('@/vendor/Export2Excel').then(excel => {
        const tHeader = ['timestamp', 'title', 'type', 'importance', 'status']
        const filterVal = ['timestamp', 'title', 'type', 'importance', 'status']
        const data = this.formatJson(filterVal, this.list)
        excel.export_json_to_excel({
          header: tHeader,
          data,
          filename: 'table-list'
        })
        this.downloadLoading = false
      })
    },
    formatJson(filterVal, jsonData) {
      return jsonData.map(v => filterVal.map(j => {
        if (j === 'timestamp') {
          return parseTime(v[j])
        } else {
          return v[j]
        }
      }))
    }
  }
}
</script>
